1
GATE ECE 2015 Set 2
MCQ (Single Correct Answer)
+1
-0.3
In the figure shown, the output ܻ is required to be ܻ Y=AB+ $$\overline C $$$$\overline D $$. The gates G1 and G2 must be, respectively, GATE ECE 2015 Set 2 Digital Circuits - Logic Gates Question 17 English
A
NOR, OR
B
OR, NAND
C
NAND, OR
D
AND, NAND
2
GATE ECE 2015 Set 3
MCQ (Single Correct Answer)
+1
-0.3
In the circuit shown, diodes $${D_1}$$ ,$${D_2}$$ and $${D_3}$$ are ideal, and the inputs $${E_1}$$ , $${E_2}$$ and $${E_3}$$ are “0 V” for logic ‘0’ and “10 V” for logic ‘1’. What logic gate does the circuit represent? GATE ECE 2015 Set 3 Digital Circuits - Logic Gates Question 18 English
A
3-input OR gate
B
3-input NOR gate
C
3-input AND gate
D
3-input XOR gate
3
GATE ECE 2014 Set 4
MCQ (Single Correct Answer)
+1
-0.3
In the circuit shown in the figure, if C = 0, the expression for Y is GATE ECE 2014 Set 4 Digital Circuits - Logic Gates Question 20 English
A
Y= $$A\overline B + \overline A B$$
B
Y=A+B
C
Y= $$\,\overline A \, \overline B $$
D
Y=A B
4
GATE ECE 2013
MCQ (Single Correct Answer)
+1
-0.3
A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the first floor. The bulb can be turned ON and also can be turned OFF by any one of the switches irrespective of the state of the other switch. The logic of switching of the bulb resembles.
A
an AND gate
B
an OR gate
C
an XOR gate
D
a NAND gate
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